Global Patent Index - EP 0695436 B1

EP 0695436 B1 19971203 - FILM CLEANING APPARATUS AND METHOD

Title (en)

FILM CLEANING APPARATUS AND METHOD

Title (de)

VORRICHTUNG UND VERFAHREN ZUR FILMREINIGUNG

Title (fr)

APPAREIL ET PROCEDE DE NETTOYAGE DE FILMS

Publication

EP 0695436 B1 19971203 (EN)

Application

EP 94913179 A 19940422

Priority

  • GB 9400853 W 19940422
  • GB 9308538 A 19930424

Abstract (en)

[origin: WO9425902A1] A film cleaning apparatus has a container (32) in which a film (22) is exposed to mercury. This may be achieved by immersing the film in a mercury bath (34), exposing the film to mercury pressure jets (44, 46) or a combination of both. The mercury effects removal of contamination such as dust particles and grease from the surface of the film.

IPC 1-7

G03D 15/02; G03C 11/06

IPC 8 full level

G03C 11/06 (2006.01); G03D 15/02 (2006.01)

CPC (source: EP US)

G03C 11/06 (2013.01 - EP US); G03D 15/02 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 9425902 A1 19941110; AU 6543094 A 19941121; DE 69407178 D1 19980115; DE 69407178 T2 19980625; EP 0695436 A1 19960207; EP 0695436 B1 19971203; GB 9308538 D0 19930609; US 5649262 A 19970715

DOCDB simple family (application)

GB 9400853 W 19940422; AU 6543094 A 19940422; DE 69407178 T 19940422; EP 94913179 A 19940422; GB 9308538 A 19930424; US 53788595 A 19951023